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Definitions from the Web

Term: Upon

Description:

Upon is a versatile preposition that is used to indicate a position on, or in contact with, an object or surface. It can also express a time at which an action or event occurs. Furthermore, upon can convey a sense of dependence or reliance on something or someone.

Sample Sentences:

1. Position or Contact:

• He placed the book upon the table.
• The cat jumped upon the chair.
• She balanced delicately upon the tightrope.

2. Time:

• Upon reaching home, he realized he had forgotten his keys.
• The clock struck twelve upon their arrival.
• Upon completion of the course, students will receive certificates.

3. Dependence:

• The success of the project relies upon accurate data.
• She was counting upon her friend's support.
• His happiness depended upon her decision.

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